Method and apparatus for protecting a PCI device controller from masquerade attacks by malware
US10146962B2 · kind B2 · utility
1Cited by
1References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2015 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | Dec 3, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2149
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique allows for protecting a PCI device controller from a PCI BDF masquerade attack from Ring-0 and Ring-3 malware. The technique may use Virtualization technologies to create guest virtual machines that can use a hypervisor to allocate ACPI information from ACPI tables to a secure VM and using extended page tables (EPT) and VT-d policies to protect the MMIO memory range during illegal runtime events.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.